单项选择题
水泥砂浆抹带接口带宽为()mm,带厚约()mm。
A.120~150mm/30mm
B.120~150mm/20mm
C.100~120mm/30mm
D.100~120mm/20mm
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单项选择题
A.120~150mm/30mm
B.120~150mm/20mm
C.100~120mm/30mm
D.100~120mm/20mm
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